@Article{ 
  DeLFri17a,
  author = { De Luca, Lucia and Friesecke, Gero },
  title = { Classification of particle numbers with unique Heitmann-Radin minimizer },
  journal = { J. Stat. Phys. },
  year = { 2017 },
  volume = { 167 },
  number = { 6 },
  pages = { 1586--1592 },
  URL = { http://cvgmt.sns.it/paper/3322/ },
  note = { cvgmt preprint}
}